Unable to get live market data using authorized url

Using above documentation i called api https://api.upstox.com/v3/feed/market-data-feed/authorize
and recieved successful response with authorized url
but, when i try to open a websocket using authorized url and same access token i am getting unauthorized access reponse.

Please advice am i doing something wrong?
am i missing something?
What is this authorized url used for?

Hi @ANIRUDHA_31468087
Once you have obtained the authorized URL, you can initiate a WebSocket connection. To do this, open a new WebSocket request in Postman and paste the authorized URL. Please note that the data received from our servers is in binary format, so you will need to attach the following .proto file: MarketDataFeed.proto.

For more information, please refer to the following documentation:

For easier implementation of websockets do refer to streamer functionalities provided in various languages.

Thanks!